So last week I noticed a single bump on the bottom of my penis, on the underside shaft. It was a couple days after having sex. It looked like a pimple, so I tried to pop it. No puss came out, but it bled and it looked like I "opened it up". It doesn't hurt unless i put pressure on it or squeeze it. And now a week later, it's not really a bump anymore but it's still a red spot. Is it herpes? I hope not :'(